tci ED Coding & Reimbursement Alert - 2023 Issue Q2

Reader Questions: Go Below Code Descriptor for Dx Synonyms

Question: Encounter notes indicate that the physician treated a patient with “acute subendocardial MI.” I know MI stands for myocardial infarction, but which type of MI does this note describe? AAPC Forum Subscriber Answer: The diagnosis code for this MI is I21.4 (Non-ST elevation (NSTEMI) myocardial infarction). Per ICD-10, the condition goes by several names, which are listed below the descriptor for I21.4: Acute subendocardial myocardial infarction Non-Q wave myocardial infarction NOS Nontransmural myocardial infarction NOS Type 1 non-ST elevation myocardial infarction.   ...

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